Home / 14,122.58-21,187.46-9,970.67

Finding the Fourth Proportional to 14,122.58, 21,187.46 and 9,970.67

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Solution

The fourth proportional to 14,122.58, 21,187.46 and 9,970.67 is: 14,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.58 : 21,187.46 = 9,970.67 : x
  2. Step 2: Convert to fraction form
    14,122.58/21,187.46 = 9,970.67/x
  3. Step 3: Cross multiply
    14,122.58x = 21,187.46 × 9,970.67
  4. Step 4: Simplify right side
    14,122.58x = 211,253,249.69
  5. Step 5: Solve for x
    x = 211,253,249.69/14,122.58
  6. Step 6: Final answer
    x = 14,958.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.